JPH10180697A - Belt transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly and reliably transmit the power of a drill motor to drills in punching filing holes in a file with a punch, easily and reliably adjust the pitch of the filing holes in the file, and reduce the possibility of troubles caused in the device and the costs thereof. SOLUTION: A paper drill 1 is provided at the back side of its ram 3 with a drill motor 5 having at its upper end a driving wheel 4, and at the front side with a pair of drills having at their upper ends driven wheels 6 so as to be movable inward and outward by the same distance in left and right by means of movable members 8. One endless belt 9 is stretched between the driving wheel 4 of the drill motor 5 and the driven wheels 6 of the drills. A pair of tension plates 10 is swingably supported at their rear ends on each other and at their front ends on the upper ends of the movable members 8 of the drills. A tension wheel 11 for pressing backward and stretching the belt 9 is supported through a support plate 12 on the rear upper ends of the tension plates 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is mainly installed in a printing company or a bookbinding company for business use, or installed in another company or office for general office use, and stores documents, catalogs, and files in files. The present invention relates to a belt transmission device for a paper drill suitable for opening a binding hole when binding a magazine or the like.

[0002]

2. Description of the Related Art Conventionally, this type of belt transmission is shown in FIG.
As shown in FIG. 1, a drill motor 25 having an original wheel 24 attached to the upper end is attached to a rear side of a ram 23 attached to the inside of a paper drill body 22 such as a paper drill 21 so as to be able to move up and down. On the left side, one of the drills 2 for drilling a binding hole with a driven wheel 26 attached to the upper end
7 is fixed, and the other piercing drill 29 for piercing a binding hole, which is also provided with a driven wheel 28 at the upper end on the front right side of the ram 23, can be freely moved in the left-right direction via appropriate moving means. Attachment, two endless annular belts 30 are wound one by one between the original wheel 24 of the drill motor 25 and the driven wheels 26, 28 of the drills 27, 29 so that the power of the drill motor 25 is A tensioning wheel 31 which transmits to the drills 27 and 29 and, at the substantially center of the upper rear portion of the ram 23, pushes the belt 30 on one side while pressing the belt 30 to one side.
Is supported so as to be swingable via the support plate 32.

[0003]

However, in the conventional belt transmission, two endless annular belts 30 are provided for the original vehicle 24 of the drill motor 25 and the driven wheels 26, 28 of the drills 27, 29. Since the power of the drill motor 25 is not distributed uniformly and simultaneously to each of the drills 27 and 29, and the belt 30 on one side is placed on one side of the ram 23 at the approximate center of the rear upper surface. Since the tension wheel 31 that is pushed and hung while being supported is swingably supported via the support plate 32, it is not possible to apply an appropriate belt tension. When drilling a binding hole for binding a hole, the power of the drill motor 25 could not be smoothly and reliably transmitted to each of the drills 27 and 29. Moreover, on the front left side of the ram 23,
One piercing drill 27 provided with a driven wheel 26 at the upper end is fixed, and the other piercing drill 29 provided with a driven wheel 28 at the upper end is mounted on the right side of the front side of the ram 23 via appropriate moving means. The front right side of the ram 23 is moved only in the right and left direction when the binding holes for binding documents, catalogs, magazines, etc. to the file are drilled. The adjustment of the pitch of the binding hole of the file was troublesome and could not be performed reliably. In addition, the original wheel 24 of the drill motor 25 and the driven wheels 26, 28 of the respective drills 27, 29
Since two endless annular belts 30 were laid one by one between the tension belt 31 and the tensioner 31, many troubles occurred and the cost became high.

Accordingly, the present invention has been made in view of the above-mentioned point of view, and the power of a drill motor is used for drilling a binding hole for binding a document, catalog, magazine, or the like to a file. It not only ensures smooth and reliable transmission to the drill, but also makes it possible to easily and reliably adjust the pitch of the file binding holes, and has fewer failures and is less expensive than conventional ones. A belt transmission is provided.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a belt transmission according to the present invention is provided on a rear side of a ram which is attached to a paper drill body such as a paper drill so as to be able to move up and down. A drill motor with an original wheel attached to the upper end is attached, and a pair of drills for binding holes with an idler wheel attached to the upper end are provided on the front side of the ram. It is movably mounted in the inner and outer directions and in opposite left and right inner and outer directions by the same length, and the original vehicle of the drill motor and the driven vehicle of each drilling drill are 1
The endless annular belt is passed over the belt to transmit the power of the drill motor to each drill, and a pair of tension members whose rear ends are swingably supported on the upper end of the moving member of each drill. The front ends of the plates are swingably supported, and a tensioning wheel that supports the belt while pushing the belt backward is supported above the rear end of each tensioning plate via a supporting plate.

[0006] As a means for moving each drill, a screw rod with an operation handle provided with a screw opposite in one end and the other end is rotatably supported on the upper front portion of the paper drill body. When one moving member is screwed into the screw at one end of the screw rod, and the other moving member is screwed into the screw at the other end of the screw rod, and the operation handle of the screw rod is rotated in one direction, the relative When the operation handle of the screw bar is rotated in the other direction by moving the same length in the left and right inner direction or in the opposite left and right outer direction, the same length is moved in the opposite left and right outer direction or the opposite left and right inner direction. It is like that.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given, with reference to the accompanying drawings, of an embodiment of the present invention, in which a pair of binding holes is opened when binding a document, catalog, magazine, or the like to a file.

The belt transmission of the present invention is shown in FIGS.
As shown in the figure, on the rear side of a ram 3 which is attached to the inside of a paper drill body 2 such as a paper drill 1 so as to be vertically movable,
A drill motor 5 having an original wheel 4 attached to an upper end thereof is attached, and a pair of drills 7 for punching a binding hole having an upper driven wheel 6 attached thereto are provided on the front side of the ram 3. Attached movably by the same length in the left and right inner and outer directions and the opposite left and right inner and outer directions via each other, the original wheel 4 of the drill motor 5 and the driven wheel 6 of each of the drills 7
One endless annular belt 9 is wrapped around the drill motor 5
Is transmitted to each drill 7 and the front ends of a pair of tension plates 10 whose rear ends are swingably supported on the upper end of the moving member 8 of each drill 7 are swingably movable. On the upper rear end of each tension plate 10, each tension plate 10 is formed to support, via a support plate 12, a tension wheel 11 that hangs while pressing the belt 9 rearward.

That is, the ram 3 has a drive shaft 17 mounted on a ram motor 16 inside a paper drill main body 2 of a paper drill 1 having a cover 19 attached to an upper front surface and a front surface.
Are mounted so as to be able to move up and down along a pair of guide shafts 18. It is attached movably by the same length in the left, right, inside and outside directions.

The means for moving each drill 7 is as follows:
A screw rod 15 provided with screws 13a and 13b having opposite directions at one end and the other end at an upper front portion of the paper drill body 2.
Is rotatably supported, an operation handle 14 operated from the outside is attached to one end of the screw rod 15, and one moving member 8 is screwed into a screw 13a at one end of the screw rod 15, and When the other moving member 8 is screwed into the screw 13b on the other end side and the operation handle 14 on one end side of the screw rod 15 is rotated in one direction, the same length in the opposite left and right inner direction or the opposite left and right outer direction. When the operation handle 14 at one end of the screw rod 15 is rotated in the other direction, the screw rod 15 is moved by the same length in opposite left and right outer directions or in opposite left and right inner directions.

[0011]

According to the belt transmission of the present invention, as described above, the original wheel 4 is attached to the upper end of the ram 3 attached to the inside of the paper drill body 2 such as the paper drill 1 so as to be able to move up and down. A pair of drills 7 for drilling a binding hole provided with a driven wheel 6 at the upper end thereof are mounted on the front side of the ram 3 at the front side of the ram 3. One endless annular belt 9 is mounted on the original wheel 4 of the drill motor 5 and the driven wheel 6 of each of the drilling drills 7 so as to be movable by the same length in the outer direction and in opposite left and right inner and outer directions. The power of the drill motor 5 is transmitted to the drills 7 and the upper end of the moving member 8 of each drill 7 is provided at the front end of a pair of tension plates 10 whose rear ends are swingably supported. Each part is swingably supported,
On the upper side of the rear end of each tension plate 10, a tension wheel 11 that hangs while pressing the belt 9 rearward is formed so as to be supported via a support plate 12. And the driven wheel 6 of each drill 7, one endless annular belt 9 is wound around, so that the power of the drill motor 5 is uniformly and simultaneously distributed to each drill 7, and each tension plate By supporting the tensioning wheel 11, which presses the belt 9 rearward on the upper side of the rear end portion 10 while pressing the belt 9 through the support plate 12, it is possible to provide an appropriate belt tension. , Files, catalogs,
When drilling a binding hole for binding a magazine or the like, the power of the drill motor 5 can be smoothly and reliably transmitted to each drill 7.

In addition, a driven wheel 6 is provided at the upper end on the front side of the ram 3.
A pair of piercing drills 7 for binding hole piercing, which are provided with, are movably attached to the left and right inside and outside directions and the opposite left and right inside and outside directions opposite to each other via a moving member 8 as appropriate. When opening binding holes for binding documents, catalogs, magazines, and the like to a file, only moving each moving member 8 causes each drill 7 to move in opposite left and right inner and outer directions and opposite left and right inner and outer directions. Since the files can be moved by the same length, the pitch of the binding holes of the file can be easily and reliably adjusted.

In addition, since only one endless annular belt 9 is wound around the original wheel 4 of the drill motor 5, the driven wheel 6 of each drill 7 and the tension wheel 11, the conventional drill motor 5 is used. 5 can be provided with less trouble and at lower cost than two endless annular belts 9 wrapped around the original wheel 4 and the driven wheel 6 of each drill 7 and the tension wheel.

Further, as means for moving each of the drills 7 as in claim 2, an upper front portion of the paper drill body 2 is provided.
A screw rod 15 with an operation handle 14 provided with screws 13a and 13b in opposite directions at one end and the other end is rotatably supported, and one moving member 8 is attached to a screw 13a at one end of the screw rod 15. Screw 13 at the other end of screw rod 15
When the other moving member 8 is screwed into b and the operation handle 14 of the screw rod 15 is rotated in one direction, it moves by the same length in opposite left and right inner directions or opposite left and right outer directions,
Further, when the operation handle 14 of the screw rod 15 is rotated in the other direction, the same length can be moved in opposite left and right outer directions or opposite left and right inner directions, so that a file, a catalog, a magazine, or the like is bound in a file. When drilling holes, the pitch of the binding holes in the file can be adjusted more simply and reliably.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view of a paper drill provided with a belt transmission of the present invention.

FIG. 2 is a partially omitted front view showing a state where a cover of FIG. 1 is removed.

FIG. 3 is a partially omitted plan view showing the operation of the belt transmission of the present invention.

FIG. 4 is a schematic plan view showing the operation of a conventional belt transmission.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper drill 2 Paper drill main body 3 Ram 4 Original vehicle 5 Drill motor 6 Follower vehicle 7 Drilling drill 8 Moving member 9 Belt 10 Tension plate 11 Tension wheel 12 Support plate 13a Screw 13b Screw 14 Operation handle 15 Screw rod 16 Ram motor 17 Drive shaft 18 Guide shaft 19 Cover

Claims (2)

[Claims] 1. A drill motor having an original vehicle attached to an upper end is attached to a rear side of a ram attached to a paper drill body such as a paper drill so as to be able to move up and down, and a front end of the ram is driven by an upper end. A pair of piercing drills for binding holes provided with a wheel are movably attached to the left and right inner and outer directions and the opposite left and right inner and outer directions opposite to each other by appropriate moving members, respectively; A single endless annular belt is stretched between the original vehicle and the driven vehicle of each of the drills, and the power of the drill motor is transmitted to each of the drills, and at the upper end of the moving member of each of the drills, The rear ends of the pair of swinging plates support the front ends of a pair of swing plates that are swingably supported.
A belt transmission device, wherein a tension wheel that hangs while pressing the belt backward is supported via a support plate. 2. As a means for moving each drill, a screw rod with an operation handle provided with screws in opposite directions at one end and the other end is rotatably supported on the upper front part of the paper drill main body, When one moving member is screwed into the screw at one end of the screw rod, and the other moving member is screwed into the screw at the other end of the screw rod, and the operation handle of the screw rod is rotated in one direction, the relative When the operation handle of the screw bar is rotated in the other direction by moving the same length in the left and right inner direction or in the opposite left and right outer direction, the same length is moved in the opposite left and right outer direction or the opposite left and right inner direction. 2. The belt transmission according to claim 1, wherein: